There are various ways to direct a domain to an alternative domain or subdomain and one of them is by setting up a CNAME record. If you own a domain name and you've set up a site through some online service which provides you with a service subdomain, you can easily link the two by setting up a CNAME record for your-domain.com that points to subdomain.provider.com. What you're going to achieve in this way is that www.your-domain.com is going to be in the Internet browser address bar while it opens the already mentioned Internet site from the servers of the third-party provider. It is essential to know that if you create a CNAME record, any other records your domain address may have will stop functioning, so you cannot have both a CNAME record pointing to one company and functioning e-mail address with another. The CNAME record is always an alpha string, not a number, and often more configuration may be necessary with the other provider.